Science is not only a disciple of reason but, also, one of romance and passion.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
To every action there is always an equal and opposite or contrary, reaction
Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.
The whole of science is nothing more than a refinement of everyday thinking.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
I cannot live without books.
A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.
The deepest sin against the human mind is to believe things without evidence.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
I do not know how to teach philosophy without becoming a disturber of the peace.
Knowledge becomes evil if the aim be not virtuous.
Patience is a virtue, and I'm learning patience. It's a tough lesson.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
If you can't explain it simply, you don't understand it well enough.
The books that the world calls immoral are books that show the world its own shame.
To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Don't learn to do, but learn in doing.
Education is a system of imposed ignorance.
Intelligence plus character-that is the goal of true education.